Payless has their flip-flops on sale for BOGO free right now. There's also a $2 off coupon and free shipping if you ship them to your local Payless store. So you can get two pairs of shoes for less than $5!
I just ordered these two pairs for $4.44 total. It said shipping would take 14-17 days, but I can't complain for shoes that cheap.
For more details, check out Hip 2 Save!